30-07-2016, 11:02 AM
Hi am Mohamed i would like to get details on hts transformer ppt ..My friend Justin said hts transformer ppt will be available here and now i am living at ......... and i last studied in the college/school ......... and now am doing ....i need help on ......etc
Introduction
In highly interconnected and expanded power system,
faults of increased magnitude start creeping frequently
into the system, so we have to look for a solution that
can help reduce these increased magnitudes of fault
currents.
Problems of Fault Control
Many approaches to limiting fault currents have been proposed in the past which include the use of circuit breakers with ultra-high fault current rating, high impedance transformers and current limiting fuses.
Circuit breakers are expensive, can not interrupt fault currents until the first current zero comes and also they have limited life times.
The high impedance transformer with their high losses makes the system inefficient.
The fuses have a very low withstandable fault current and it has to be replaced manually.
